moleea



. (No Model.)

B, J. MOLBRA. DEVICE PORMAGNBTIZING THE TIRES 0F DRIVE WHEELS OF LOCOMOTIVES. No. 288,356. Patented Nov. 13, 1883-.

I act es ntib' ShiiIlCOhlbill' heapness and-sin viewthereof in veiftiealseetion A improvement.

' mental section's-B,insulatedfrqn eaeh otherby npn-megneticblocks C,;the;leg oflthe meg? I .nefs' being -respeetively attached j tov thesziidv SPECIFICATION- -for1nihg I desirecl'manner fi om suit' i-ihlegnonee so it UNIT- D STATES PATENT 'QFFICIE,

nUsnBiUsoJhiio nnh I I I JOHN e. Q BRIAN,

OF-SAN ERANCIISGO, CALIFORNIA, ASSIIGNORTO 0F snMn LACE,

DEyI EI-FOR MAGNEl 'lZING THETIRES =05 DRIVE-WHEELS OF LOCOMOTIVES.

of San Freneig 0- :in:the county.--of San'Franv e eu see fireuifom mav imf nted.

certain. newend iheh il' In iprovemcnhsz-in De-3i I I BI 'I J- MOLERA,

W e l 9 otive ;-.i 'nfl"iIf. -0 reby i e elare the-follo 84 d X Y g' oT-b a' nllg; cl an 7 th' inxrlent'ion, suehias xfvi enable others' slgile the ai't toswhichitpertainsjto makeenglnse the-sanie. I I r My inventionrelates :to. an improvementin devices for; magnetizing the .driyqewheelh of locomotives with the effect ofreaiising'theil ad hesion to the track-fails, whereby seid wheels can he util-iZedz-hob fo'nly'. asbmkes 'fQr- I6mfd7-T i mg or stopping thelocomotivefonleyeltraeks g and downgrnldegfbut zilso for' arssisting its pro-Q grass on up or rising l inventionxbeingito devices which shall a -1mm electrieallenergy gradesgthe fobjeet of-the e t "theb ve-results y is adetaehedyiew of one. and Fig. 5 is "a. View, drive I My improved I'drivewheels -.:11'.ecomposed, essentially; i of,eleetromzig-netslA,' which pony stitute the spokes, anclofitii es jfo -m'edin eeg:

tiresections'. The mhg'netseforesaid are grouped aroundn) central h'olloiv-eylindeig D;

in which the c0mjn1utator'plhtes;EendE-zu ei mountedQ 'llhes'aid 'cylindel is {mailedin jany b d efi material, beihgffishapegiin croes-seetiom;and having its eiternzil thee-01 fie phery divided into two 'sets'oi series of corresponding spaces;

vspaees; thus L formed icylinderi on onesigle- I ;1)y-th"e commntatoreplateg E,' hji'le thespaees armed on he whe -side. of the th n) maghets is bro electric force carried 'wiie's'H. and H, -I, suitably supp will simnlteneously e iand'll, with the'effectiof deflecting a "current throngh the Said magnet, theonrrent flowing, 4 in the direction indicated-by the ar1 'ows,--firom the wire-H to the brush "I, through which-L., 1 passes to theplate E, inc'ontaetwit-h it, thence p En' t Qf Letterg Patent-No -288,356, 'dated November 13,1888. n llmio tiled i bniar fel 1883. (no m0(lel .l Y Y I l herespective {Coil terminals of t the iespeetive magnetsA {are connected to corre- OI II-thG onter fgceiof the 'flangepane-occupicdhyJSimiIeI; p-lates,-; E, the said plates E ev adine tly, ppo e, ea h pen i g p eteeE-e -ET, i b n y n h manner shown. v Eleeti ieity for-energizing the b'ythe locomotive by terminating in brushes I- and altrn-nged to. be simultaneously engaged with corresponding-plates, E andE.

I 3 Having described the construction of my improved wheels,

-I will no set. fomi ie.

light; fromxa suitable source of orted untler and'irespectively' method of. their operation by-refei encevtofjgm I I'ofthe drawings. I The. wires H andHare fir sb-eonneeted'with wh eelrevolves, and iti'is 'i'mma teriaili in'--whieh direction, the plates E and sE", connected with ngu-ge withxthe brushes I fiow'ingthro'nghiha coil of theimagnet to the plate-E, in contact with and completes I the passage of this cun' entthrough the me'gnctiits positive and negative .poleswillbe magnetizedand-rim duoe-magnetism in th'e tire-sections to which theyiare respectively attached, in turn inducing fmagnetism of opposite po- 1i1rit yi n the traek-mihthe the tire-sections andlmils'causing'an-adhesion of the wheel-to 'theitmck.- The oui re'nt will be deflected through tho -maguetwith the effects above stated until the {commntatorepla-tes jzire: cafiiedbeyond-the rang'eof thebrnshes by the rotation-of the wheel, the bi'nshes being attraction between.

the coil-terminalsofthemegneg haying one 01 both poles in-'cont-act iv itzh the track-rails,

I I the brush 1-, from hiqhi'it; flows tcQthe wire H- the'eircuit inthe battery. .In- V- these sections almost immediately engaged with the pair ot plates connect-ed with the tel-mi nzfl's o'f the coil of much as it is applied to one magnet to the exclusion of the others.

The modified construction shown in Fig. 5 of the drawings diifersfrom the construction shown in the other figures only in the construction and disposition of thecommutatorplates, which, in the, modified construction, are segmental inform and grouped in two concentric rings, substantially as shown.

It is apparent that some changes in the construction and arrangement of parts may be re-- sorted to. I would therefore have it understood that I do not limit myself to the exact construction shown and described, but that I hold myself at .liberty to make such slight changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, with drive-wheels hav ing electro-magnet spokes and tires formed in insulated sections, the legs of the magnets being respectively attached to the said tiresections, of separate-commutators for the respective terminals of the coils of .each magnet, and means for simultaneously connectingthe'plates to which the terminals of one magnet are connected with a source of electric force, substantially as set forth. p

2. The combination, with drive-wheels hav- 7 ing electro-magnet spokesand tires formed in insulated segmental sections, the legs of the magnets being-respectively attached to the tire-sections, of a non-conducting cylinder car rying on its periphery twoseries or .sets of commutator-plates, and means for simultaneously connecting apair of corresponding plates with a source of electric force, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

EUSEBIUS J. MOLERA. XVitncsses:

FRANK O. BICCLEARY, GEORGE Goon. 

